linux-kernel - Re: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already assigned

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Message-ID: <4C0608C6.4090901@zytor.com>
Date:	Wed, 02 Jun 2010 00:31:18 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Bjorn Helgaas <bjorn.helgaas@...com>
CC:	Mike Travis <travis@....com>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Jacob Pan <jacob.jun.pan@...el.com>, Tejun Heo <tj@...nel.org>,
	Mike Habeck <habeck@....com>,
	LKML <linux-kernel@...r.kernel.org>, linux-pci@...r.kernel.org
Subject: Re: [Patch 1/1] x86 pci: Add option to not assign BAR's if not already
 assigned

On 06/01/2010 03:49 PM, Bjorn Helgaas wrote:
>>
>> BIOS still assigns the MMIO BAR's so the devices are alive.
>
> I'm sorry; I don't follow this.  BIOS assigns MMIO BARs regardless
> of whether we have your patch.
>

I'm assuming that that Mike is implying is that the allocation code runs 
out of I/O space and as a result shuts down the entire device.

	-hpa
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